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eslint-plugin-unicorn

77.0.030M downloads/mosindresorhus/eslint-plugin-unicorn ↗New releases in your daily digest, changelog included.

More than 300 powerful ESLint rules

Last release today
03 Oct 2026
Release timing varies
gaps range from 8 days to 4 months
Nearly every release is documented
notes for 60 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
10 years old
133 releases · first in 2016

Release timeline

133 releases since 2016

2016201820202022

Releases

5.0.028 Jul 2018
Require ESLint 5. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/a6ce053a9d2661d459a2d36728c15fc21353a41a
Require ESLint 5. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/a6ce053a9d2661d459a2d36728c15fc21353a41a

Require Node.js 6. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/b546647e49e02fccda4f33bc5b365090e0817562

Also check conditional expressions in explicit-length-check rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/ad1fd85640a266fe85ebc0b0cffe6dcb21dca0c5

https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v4.0.3...v5.0.0
Open source →
4.0.36 Apr 2018
Nothing published for this version
4.0.214 Feb 2018
Nothing published for this version

4.0.013 Feb 2018

Added: `prefer-add-event-listener` rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/b7e4afbf6562b93d88f6c652a64df72316c73004

Added: prefer-add-event-listener rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/b7e4afbf6562b93d88f6c652a64df72316c73004
Added: prefer-spread rule rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/aeedf6fa7c7f69520b03df493a07dd46b3d1caa6
~~Added: no-unsafe-regex rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/b1beb61bf3a5f1c0c2c6e2b862907dffcef65b60~~ (Disabled for now)
Added: error-message rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/dd05f68f42b51c5941a59fb1509ef48bad658440
Added: caughtErrorsIgnorePattern option to catch-error-name rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/54738bed4936a2f06215bc124081d0fc6dd571a1
Improvement: Exclude index.js from the filename-case rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/6a9b550f08461b35c99a465dc7c42420c90eb089
Fixed: Allow specifying rules from a scoped plugin in the no-abusive-eslint-disable rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/1b7c27f5c7d10d5ed6acfe1e37192f497a1f27f0
Fixed: Allow regex literal inside RegExp constructor in the regex-shorthand rule. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/adc59dbb5d7740ad983cc1425bc8317651f858ad

https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v3.0.1...v4.0.0

Big thanks to @johnwu93 @bdougherty @evilebottnawi @Arcanemagus @sudo-suhas for contributing to this release! 🎉

Open source →

3.0.09 Nov 2017

Added `import-index` rule. cab60da3649ab4ab058d90880b301dbdb10d4473

Added import-index rule. cab60da3649ab4ab058d90880b301dbdb10d4473
Added new-for-builtins rule. 9dfd50858ef20c76d8ad68efb85560e812b7f99a
Added regex-shorthand rule. cba8dd9f31f2ff5646376b137a85f95ab2567e98
Added no-fn-reference-in-iterator rule. c11cc5db3db15087314c85dd98055a555818346b
Added non-zero length style option to explicit-length-check rule. 0c61fde82a8f01c61e34b38b55ef5105f5487a9f
Re-enabled the escape-case and no-hex-escape rules. They were previously disabled because of some issues. 81b92a945620ed4bbcc10fe7220ab25a8c92667b

All changes: https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v2.1.1...v3.0.0

Open source →

2.1.125 Mar 2017

Disable the escape-case and no-hex-escape rules in the recommended config until they work reliably. https://github.com/sindresorhus/eslint-plugin-unic

Disable the escape-case and no-hex-escape rules in the recommended config until they work reliably. https://github.com/sindresorhus/eslint-plugin-unicorn/commit/b892525e19e01150972abdaf44515d367f17e3ee

See: #85

Open source →

2.1.010 Mar 2017

Support custom errors in the throw-new-error rule

Support custom errors in the throw-new-error rule
Bug fix for number only escapes in escape-case rule

https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v2.0.1...v2.1.0

Open source →

2.0.06 Feb 2017Deprecated

no-new-buffer - Enforce the use of Buffer.from() and Buffer.alloc() instead of the deprecated new Buffer(). _(fixable)_

8 new rules

number-literal-case - Enforce lowercase identifier and uppercase value for number literals. (fixable)
no-array-instanceof - Disallow instanceof Array, instead use Array.isArray(). (fixable)
no-new-buffer - Enforce the use of Buffer.from() and Buffer.alloc() instead of the deprecated new Buffer(). (fixable)
no-hex-escape - Enforce the use of unicode escapes instead of hexadecimal escapes. (fixable)
escape-case - Require escape sequences to use uppercase values. (fixable)
custom-error-definition - Enforces the only valid way of Error subclassing. (fixable)
prefer-starts-ends-with - Prefer String#startsWith & String#endsWith over more complex alternatives.
prefer-type-error - Enforce throwing TypeError in type checking conditions. (fixable)

https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v1.0.0...v2.0.0

Open source →